Inking and lacquering roller for lithographic, printing, and lacquering machines



Jan. 15, 1946. F. FOX 2,393,097

' INKING AND LACQUERING ROLLERS FOR LITHOGRAPHIC PRINTING AND LACQUERINGMACHINES Filed Feb. 7. 1942 FRANK Fdx ,4 7 TDRNE Y5:

atented Jan. l5, l9

QUEEING MAC Fox, Halifax, England Application February 2, 1942, SeriaiNo. 429,922 in Great Britain February 7, 19411 1 Claim. 91-4573) Theinvention relates to lacquering and inking rollers for lithographic,printing and lacquering machines, and has for its object to provideimprovements therein whereby said rollers have a longer useful life,retain the required degree of resiliency, are not adversely afiected byinks, lacquers and cleansing preparations, are sympathetic to the form,that is to say, they do not damage the latter and have a consistentinking action throughout, and may be reconditioned from time to time ata minimum of cost.

According to the present invention the improved rollers comprise a shaftor mandrel covered with ground or agglomerate cork, The cork may besecured to the mandrel by cement or other adhesive, or a covering oftextile material, rubber, felt, or the like may be cemented to themandrel, upon which is superimposed and cemented thereto a layer,layers, block, blocks or the like of ground or agglomerate cork. Thecork may be in plane form with the ends thereof in abutment, tapered andoverlapping, or stepped and overlapping, or it may be applied in aspiral manner.

The invention will now be described with reference to the accompanyingdrawing, in which- Figure l is a side view of the roller described, withparts shown in section.

Figure 2 is a sectional end view of the roller.

Similar letters refer to similar parts throughout the several views.

A is an appropriate mandrel or shaft provided with the customarytrunnions B, and cemented imposed and cemented thereto a layer or layersof ground or agglomerate cork D.

In the embodiment of the invention, shown, the mandrel is provided witha textile or similar cover C and may have mounted and cemented thereoncentrally bored blocks of ground cork D, whose ends are in abutment andare cemented together at F, said blocks being subsequently treated toproduce the desirable cylindrical contour, as shown in Figures 1 and 2of the drawing.

By these means, in addition to attaining the objects already set forth,the textile or similar element is adapted to impart additionalresiliency to the cork cover D and also permits the latter to be muchmore securely attached to the mandrel than would otherwise be the caseif such element were omitted.

Should the rollers get out of true owing to wear they can be againturned, ground or otherwise treated to render them perfectly cylindricalagain and need not be re-covered as is the case with rubber-covered andsimilar rollers.

What I claim as my invention, and desire to secure by Letters Patent is:

Inking and lacquering rollers for lithographic, printing and lacqueringmachines, comprising a mandrel having cemented thereto a covering oftextile material, centrally bored blocks of ground cork beingsubsequently cemented to said textile material and the cork treated soas to have an absolutely cylindrical contour, said textile materialimparting additional resiliency to the cork blocks and providing meansfor insuring the blocks being securely attached to the mandrel.

" ihr: FOX.

